ui: Blank screen when VGA SCREEN_OFF is set

Spidy123222 · Jun 14, 2023 · 129c48d · 129c48d
1 parent af3f832
commit 129c48d
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/hw/xbox/nv2a/nv2a.h b/hw/xbox/nv2a/nv2a.h
@@ -27,5 +27,6 @@ int nv2a_get_framebuffer_surface(void);
 void nv2a_set_surface_scale_factor(unsigned int scale);
 unsigned int nv2a_get_surface_scale_factor(void);
 const uint8_t *nv2a_get_dac_palette(void);
+int nv2a_get_screen_off(void);
 
 #endif
diff --git a/hw/xbox/nv2a/pgraph.c b/hw/xbox/nv2a/pgraph.c
@@ -5350,6 +5350,11 @@ const uint8_t *nv2a_get_dac_palette(void)
     return g_nv2a->puserdac.palette;
 }
 
+int nv2a_get_screen_off(void)
+{
+    return g_nv2a->vga.sr[VGA_SEQ_CLOCK_MODE] & VGA_SR01_SCREEN_OFF;
+}
+
 int nv2a_get_framebuffer_surface(void)
 {
     NV2AState *d = g_nv2a;

diff --git a/ui/xui/gl-helpers.cc b/ui/xui/gl-helpers.cc
@@ -700,7 +700,10 @@ void RenderFramebuffer(GLint tex, int width, int height, bool flip, float scale[
 
     glClearColor(0, 0, 0, 0);
     glClear(GL_COLOR_BUFFER_BIT);
-    glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_INT, NULL);
+
+    if (!nv2a_get_screen_off()) {
+        glDrawElements(GL_TRIANGLE_FAN, 4, GL_UNSIGNED_INT, NULL);
+    }
 }
 
 void RenderFramebuffer(GLint tex, int width, int height, bool flip)